Information on the characteristics of working women in the United States and changing trends over the past quarter century are presented in this databook. (The primary source of the data is the Current Population Survey, which is conducted monthly for the Bureau of Labor Statistics by the Bureau of the Census.) Part 1 of the databook provides information on the labor force participation, employment, and unemployment of women between 1950 and 1976. It also presents data on the strength of women's attachment to the labor force as indicated by the number of weeks spent working or looking for work during the year. Part 2 focuses on working women's marital and family status, and part 3 reviews changes in women's education, income, and earnings. Part 4 analyzes data by race and Spanish origin. (Collection of data by Spanish origin was begun in 1973.) Part 5 contains additional information on the job tenure of working women and moonlighting, and part 6 concludes with a glimpse of future worklife expectancy and labor force participation rates. All data, unless otherwise indicated, refer to the civilian noninstitutional population sixteen years of age and over. (TA)